cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A265709 a(n) = numerator of Sum_{d|n} 1/sigma(d).

Table of values

n a(n)
1 1
2 4
3 5
4 31
5 7
6 5
7 9
8 54
9 69
10 14
11 13
12 155
13 15
14 3
15 35
16 1709
17 19
18 23
19 21
20 31
21 45
22 13
23 25
24 27
25 223
26 10
27 703
28 93
29 31
30 35
31 33
32 15536
33 65
34 38
35 21
36 713
37 39
38 7
39 75
40 9
41 43
42 15
43 45
44 403
45 161
46 25
47 49
48 1709
49 521
50 446
51 95
52 155
53 55
54 703
55 91
56 243
57 21
58 62
59 61
60 155
61 63
62 11

List of values

[1, 4, 5, 31, 7, 5, 9, 54, 69, 14, 13, 155, 15, 3, 35, 1709, 19, 23, 21, 31, 45, 13, 25, 27, 223, 10, 703, 93, 31, 35, 33, 15536, 65, 38, 21, 713, 39, 7, 75, 9, 43, 15, 45, 403, 161, 25, 49, 1709, 521, 446, 95, 155, 55, 703, 91, 243, 21, 62, 61, 155, 63, 11]